What causes a substance’s identity to change during a chemical change?

Answers

Answer 1
Chemical changes occur when bonds are broken and/or formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance with different properties. ... One good example of a chemical change is burning a candle.



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Related Questions

which molecule is most likely to diffuse through a cell membrane without the use of energy?

Answers

i believe the answer is water

What are the differences and similarities between elements, atoms, molecules, and compounds?

Answers

Atoms are the thing that make up molecules and compounds. Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. ... The atoms within a compound also must be different from eachother, whereas a molecule can consist of only one element.

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What is one way that microorganisms can be beneficial to humans? Question 11 options: Microorganisms cause disease. Microorganisms decompose wood. Microorganisms decompose waste. Microorganisms decay tooth enamel.

Answers

Microorganisms decompose waste.

Answer: I’m am pretty sure the answer is microorganisms decompose waste.

Explanation:

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The energy released from the complete oxidation of glucose under standard conditions is 686 kcal/mol. The energy
released from the hydrolysis of ATP to ADP and inorganic phosphate under standard conditions is 7.3 kcal/mol.
Using the equation for cellular respiration from question 1, calculate the efficiency of total ATP production from 1
mole of glucose in the organism.

Answers

The energy is 8 so this would be correct answer

1. how would dr.budai refer to the new fern that contractors plan on introducing into the environment?

2.how might removing the flowering plants and replace it them with ferns affect the population numbers of the butterfly and the new species?

3. how might the building of the hotel affect the population of the new species?

Answers

Growing of ferns instead of flowering plants and building a hotel adversely affect the butterfly and species.

Dr. budai has bad reaction to the new fern that contractors plan on introducing into the environment because it will be grown instead of flowering plants which is necessary for the survival of butterfly.

Removing the flowering plants and replace it them with ferns negatively affect the population of the butterfly and the new species because butterfly feeds on the nectar of the flowers whose removal decrease the population of butterfly and those species which feed on butterfly also adversely affected due to unavailability of food source.

The building of the hotel adversely affect the population of the new species because habitat of that species will be destroyed so we can conclude that growing of ferns instead of flowering plants and building a hotel adversely affect the butterfly and species.

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How do turtles and cleaner fish benefit from their interactions

Answers

[tex] \: \: \: \: \: \: [/tex]

In a mutualistic relationship both organisms benefit from living closely together in a symbiotic relationship

example

Different fish nibble on old skin and small creatures such as parasites living on the sea turtle. The fish gets dinner, the turtle a free surface clean!

hope it helps

[tex] \: \: \: \: \: \: [/tex]

In a mutualistic relationship both organisms benefit from living closely together in a symbiotic relationship. We can for example observe this on cleaning stations. Different fish nibble on old skin and small creatures such as parasites living on the sea turtle. The fish gets dinner, the turtle a free surface clean!

In osmosis, water moves from an area of high solute concentration to an area with lower solute concentration. True False

Answers

Answer:

FALSE

Explanation:

Osmosis is the process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

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Why are crystals in minerals formed from magma larger than mineral crystals formed from lava?

Answers

Answer:

Magma cools slowly inside Earth, which gives mineral crystals time to grow large enough to be seen clearly. Lava cools much more rapidly than magma when it is below the surface. In a cooling lava, mineral crystals do not have time to form and are very small.

can hamsters eat dragon seeds?

Answers

Answer:

please mark as brains list

Explanation:

No hamsters can not eat dragon fruit because the seeds will choke them and also it has toxic things that hamsters can not eat, but only humans can, but here are the list of fruits they can eat.

Apple (seedless)

Banana

Blackberries

Blueberries

Cantaloupe.

Cherries

Cranberries

12. What biological organisms are in topsoil?
decaying and living plant and animal life
fossil remains from millions of years ago
nutrients from basic building material
Kard soil, clay, and large rocks

Answers

Answer:

Many of the millions of organisms that live in the soil, including bacteria, fungi, insects, and earthworms, are known as decomposers. They live on the remains of dead plants and animals and break down these organic remains into simple chemicals that are released into the soil.

Explanation:

Define The Meaning Of Organelle "_________ __________."
First To Answer Correctly, Gets Brainliest...

Answers

Answer:

structures that preform many jobs in cells :)

Answer:

any of a number of organized or specialized structures within a living cell.2): a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered analogous to an organ.3)In cell biology, an organelle is a part of a cell that does a specific job. ... Organelles typically have their own plasma membrane round them. Most of the cell's organelles are in the cytoplasm. The name organelle comes from the idea that these structures are to cells what an organ is to the body.

Explanation:

mykaren clark

how many chromosomes are in a typical human body cell?

Answers

Answer:

46 chromosomes

Explanation:

There are 46 chromosomes in a typical human body cell. (23 pairs of chromosomes)

Question:-

how many chromosomes are in a typical human body cell?

Answer:-

46 chromosomes

Explanation:-

The normal number of chromosomes in every cell of a typical human body is a total of 46 chromosomes, or 23 pairs.

An organelle that releases energy for metabolic activity in a nerve cell is the...?

Answers

Answer:

Mitochondria

Explanation:

Mitochondria is an organelle that creates energy in the form of ATP in all living cells.

What are the three cell layers of retina, and how does the light travel to get to the receptor layer

Answers

Ganglion layer, Bipolar cells (connect the ganglion cells to the photoreceptor layer),Photoreceptor cells. special cells called photoreceptors turn the light into electrical signals

The effects of this type of severe weather can include tress blown over by high winds, flooding caused by heavy rains, and damage to coastal areas caused by storm waves. What type of severe weather does this describe?
A. tornado
B. thunderstorm
C. blizzard
D. hurricane

Answers

The answer is: B - thunderstorm.

Answer:

thunderstorm

Explanation:

What happens yo DNA as the cells prepares to divide​

Answers

DNA Synthesis

In preparation for cell division, the cell makes a replica of its entire DNA. This happens during the S, or synthesis, phase of the cell cycle. Mitosis is the division of one cell into two cells that each has a nucleus and the same amount of DNA as the original cell.

Which statement about the specific immune response is FALSE?
Each T or B cell has antigen receptors for only one specific antigen.
T and B cells recognize antigens by using antibodies bound to their surface membranes.
Unique antigen receptors are created by genetic recombination.
Antigens must be presented by an MHC molecule for T and B cells to recognize them.
All cells express MHC-I molecules, but only antigen-presenting cells express MHC-II molecules.

Answers

Statement b is incorrect because the B cells are the only ones that produce antibodies which does apply for the T cells

what are thallophytic plants?​

Answers

Answer:

Thallophytes are a polyphyletic group of non-motile organisms traditionally described as "thalloid plants", "relatively simple plants" or "lower plants". They form an abandoned division of kingdom Plantae that include lichens and algae and occasionally bryophytes, bacteria and slime moulds.

Explanation:

gamsahamnida

Answer:

Thallophytic plants are plants of a group of plants or plant organisms (such as algae and fungi) that lack differentiated stems, leaves, and roots.

Explanation:

Hope this helped :>

When was Geoffrey Chaucer captured ?

Answers

Answer:

1359

Explanation:

We do not know any details of his early life and education. In 1357, he was a page to Elizabeth, Countess of Ulster, wife of Edward III's third son. Chaucer was captured by the French during the Brittany expedition of 1359, but was ransomed by the king.

An elk herd is observed over many generations. Most of the full-grown bull elk have antlers of nearly the same size, although a few have antlers that are significantly larger or smaller than this average size. The average antler size remains constant over the generations. Which of the following effects probably accounts for this situation?

a. directional selection
b. stabilizing selection
c. diversifying selection
d. bottleneck effect
e. Genetic Drift

Answers

Answer:

b

Explanation:

Evolution represents biological change that accumulates over time. However, this change is not always apparent at every level in the biological hierarchy. Scientists most commonly observe the effects of evolution at the ________ level.

Answers

Answer:

population level

Explanation:

it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection

in what part of the given pathway is norepinephrine secreted?

Answers

Answer:

From the varicosities of the postganglionic fiberSource: Mastering A&P #10: The Sympathetic and Parasympathetic System - Quizlet

In the post-ganglionic fibers in the sympathetic division.

Using specially designed bacteria to clean up environmentally hazardous radioactive waste would be an example of __________.

Answers

Answer:

xjsdhmbjv

Explanation:

A B C or D Helpppppppppppppppppppppppp

Answers

Answer:

A

Explanation:

Answer:

It's letter C this is the answer

mendel’s law of segregation states that the two alleles for each gene separate during gamete formation. during which stage of meiosis do the alleles separate?

Answers

anaphase (the chromatids pull apart to opposite ends)

The stage of meiosis at which the alleles separate is anaphase. The correct option is B.

What is meiosis?

Meiosis is a type of cell division of germ cells that produces gametes such as sperm or egg cells in reproducing organisms through gametes.

It entails two rounds of division, resulting in four cells with only one copy of each chromosome.

Meiosis 1 separates a pair of homologous chromosomes and converts a diploid cell to a haploid cell. It is divided into four stages: prophase, metaphase, anaphase, and telophase.

The homologues are pulled apart and moved to opposite ends of the cell during anaphase I.

The sister chromatids of each chromosome, on the other hand, remain attached to one another and do not separate. Finally, in telophase I, the chromosomes arrive at the cell's opposite poles.

Thus, the correct option is B.

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Your question seems incomplete, the missing options are:

Metaphase.Anaphase.Prophase.Embryo formation.

what type of ions carry the impulse across the synapse from one neuron to the next ?

Answers

It's the sodium ion.

When a neural impulse is fired in both neurons, it is always cause by an excited electron in one neuron moving to the other neuron to destabilize the balance of ions trying to keep them at equilibrium. This action either depolarizes or hyper-polarizes the membrane. If it does, then sodium ions--the key deficient ones--can flow into that region of low charge and maintain that state of low charge, keeping the cell membrane stable.

Semiconservative DNA replication means that
A. each daughter DNA molecule is composed of one original strand and one new strand.
B. the sequence of a DNA molecule is preserved as it is being replicated.
C. each strand of a double-stranded DNA molecule is replicated differently.
D. the cell can proofread its newly synthesized DNA only part of the time.
E. nucleotides are constantly being recycled as cells make DNA.

Answers

Semiconservative DNA replication means that each daughter DNA molecule is composed of one original strand and one new strand (Option A).  It describes the mechanism of DNA replication.

In semiconservative DNA replication, both DNA strands separate and serve as templates to create new complementary DNA strands.

In consequence, each daughter cell has a molecule of DNA composed of an 'old' DNA template strand and a newly synthesized DNA strand.

The semi-conservative nature of DNA Replication was discovered by Meselson and Stahl.

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A muscle __________ (which is actually one long muscle cell) has hundreds of nuclei along its length to speed up the chemical processes that must occur before it can contract.

Answers

The answer is fiber

water quality specialist in South Dakota notices local streams in a region have high salinity levels. The inland streams are not connected to any wetland, only a local watershed from a mountain region. Map of the Midwest United States of America. From the top left, the state of North Dakota, South Dakota below it, Nebraska below that, and Kansas below Nebraska. From the top center, Minnesota, Iowa is below it, and Missouri is below Iowa. From the top right, Michigan, Wisconsin below it, and Illinois is below Wisconsin. Next to Illinois, below Lake Michigan, is Indiana. Next to Indiana, and below Lake Erie, is Ohio.. Which of the following is a possible source of the extra salt in the stream? Ocean upstream Lake downstream Nearby fracking Pump jack drills

Answers

A possible source of additional salt in the stream is the influence of the ocean upstream.

The map shows the course of the Mississippi River through the states of Minnesota, Wisconsin, Iowa, Illinois, and Missouri and its mouth in the Ocean.

According to this information, the salinity detected in South Dakota of the Mississippi River can be caused by the influence of the salty water of the Ocean against the current of the river.

Note: This question is incomplete because the map is missing. Here is the map.

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Answer: C. Nearby Franking

Explanation: Someone in the comments was helpful enough to say it but couldn't post it so yea, just passing it on but its right so thanks to them


4. Arterioles are the

a. Vein system.
b. Arteries system.
c. Arteries and vein system.
d. Arteries and blood system

Answers

Answer:

b. Arteries system

Explanation:

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